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Finding the Fourth Proportional to 85,062.77, 127,508.38 and 53,495.39

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Solution

The fourth proportional to 85,062.77, 127,508.38 and 53,495.39 is: 80,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,062.77 : 127,508.38 = 53,495.39 : x
  2. Step 2: Convert to fraction form
    85,062.77/127,508.38 = 53,495.39/x
  3. Step 3: Cross multiply
    85,062.77x = 127,508.38 × 53,495.39
  4. Step 4: Simplify right side
    85,062.77x = 6,821,109,845.39
  5. Step 5: Solve for x
    x = 6,821,109,845.39/85,062.77
  6. Step 6: Final answer
    x = 80,189.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.